Reverse Interlock Door Mirror System: Other Infiniti Q45 III

MIRROR POSITION MEMORY FUNCTIONS

Equipped with a function which allows memorizing the desired mirror face positions (2 positions each for LH/RH door mirror).

POWER SUPPLY AND GROUND

Power is supplied at all times

1. through 10A fuse[No.8, located in the fuse block (J/B)]
2. to driver side door mirror control unit terminal 8 and
3. to passenger side door mirror remote control unit terminal 8
4. through 10A fuse[No.3, located in the fuse block (J/B)]
5. to BCM terminal 105.

When ignition switch is ON or START position

Power is supplied

1. through 10A fuse[No.9, located in the fuse block (J/B)]
2. to TCM terminal 41.

BCM is connected to LCU03 and LCU04 as DATA LINE A-2 and DATA LINE A-3.

When door mirror remote control switch is turned left or right

ground is supplied

1. to BCM terminal 24 or 21
2. through door mirror remote control switch terminal 6 or 5.

When selector lever is R position

ground is supplied

1. to back-up lamp relay terminal 1.
2. through TCM terminal 41.

Then, back-up lamp relay is energized

When back-up lamp relay is energized

Power is supplied

1. to BCM terminal 141.
2. through back-up lamp relay terminal 3.

Then signal input to driver side door mirror control unit and passenger side door mirror control unit terminal 7 from BCM terminal 61 and 67 by DATA LINE A-2 and DATA LINE A-3.

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Work Flow

1. Check the symptom and customer's requests.
2. Understand the system description. Refer to " «SYSTEM DESCRIPTION»(ref-182044-S18637530062005080600000) ".
3. Carry out the preliminary check. Refer to " «PRELIMINARY CHECK»(ref-182044-S08178050712005080600000) ".
4. Carry out the communication inspection. If CONSULT-II is used, refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-182044-S15160531552005080600000) ". If CONSULT-II is not used, refer to " «COMMUNICATION DIAGNOSIS»(ref-182044-S12989584632005080600000) ". Is the communication diagnosis result OK? If OK, GO TO 7 . If NG, GO TO 5.
5. Repair or replace depending on the diagnosis result.
6. Carry out the communication diagnosis again. If CONSULT-II is used, refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-182044-S15160531552005080600000) ". If CONSULT-II is not used, refer to " «COMMUNICATION DIAGNOSIS»(ref-182044-S12989584632005080600000) ". Is communication diagnosis result OK? If OK, GO TO 7. If NG, GO TO 5 .
7. Perform self-diagnosis. If CONSULT-II is used, refer to "CONSULT-II BASIC OPERATION PROCEDURE ". If CONSULT-II is not used, refer to " «ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSITIONER»(ref-182044-S10743362912005080600000) ". Is self-diagnosis result OK? If OK, GO TO 11 . If NG, GO TO 8.
8. Repair or replace depending on the diagnosis result.
9. Carry out the self-diagnosis again. If CONSULT-II is used, refer to " «OPERATION PROCEDURE»(ref-182044-S17737611172005080600000) ". If CONSULT-II is not used, Refer to " «ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSITIONER»(ref-182044-S10743362912005080600000) ". Is self-diagnosis result OK? If OK, GO TO 11 . If NG, GO TO 8 .
10. Referring to Trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to " «SYMPTOM CHART»(ref-182044-S10239379152005080600000) ".
11. Does the Reverse Interlock Door Mirror System operate normally? If it operates normally, GO TO 12. If not, GO TO 10 . Inspection end

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1. CHECK FUSE. Check that any of the following fuses in BCM and door mirror control unit are blown. NOTE: Refer to " «COMPONENT PARTS AND HARNESS CONNECTOR LOCATION»(ref-182044-S31171625652005080600000) ". OK or NG? OK >> GO TO 2 NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to "POWER SUPPLY ROUTING ".
2. POWER SUPPLY CIRCUIT INSPECTION(BCM) Turn ignition switch OFF. Disconnect BCM connector. Check voltage between BCM connector M4 terminal 105 and ground. 105 (Y/L) - Ground :Battery voltage OK or NG? OK >> GO TO 3 NG >> Repair or replace the harnesses for BCM power supply circuit.
3. GROUND CIRCUIT INSPECTION(BCM) Turn ignition switch OFF. Check continuity between BCM connector M4 terminal 56, 113 and ground. 56(B) - Ground :Continuity should exist. 113 (B) - Ground :Continuity should exist. OK or NG? OK >> GO TO 4 NG >> Repair or replace harness.
4. POWER SUPPLY CIRCUIT INSPECTION (DOOR MIRROR CONTROL UNIT) Check voltage between door mirror control unit connector D5 (driver side), D35 (passenger side) terminal 8 and ground. 8 (L ) - Ground :Battery voltage OK or NG? OK >> GO TO 5 NG >> Repair or replace harness.
5. GROUND CIRCUIT INSPECTION (DOOR MIRROR CONTROL UNIT) Disconnect door mirror control unit connector. Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminal 10 and ground. 10(B) - Ground :Continuity should exist. OK or NG? OK >> Preliminary check is OK. NG >> Repair or replace harness.

CONSULT-II Function

1. CONSULT-II executes the following functions by combining data received and command transmitted via the communication line from BCM. IVMS communication inspection, work support (only function setting of seats and steering wheel), self-diagnosis, data monitor, and active test display.

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1. Turn ignition switch "OFF".
2. Connect "CONSULT-II" and CONSULT-II CONVERTER to data link connector.
3. Turn ignition switch "ON".
4. Touch "START (NISSAN BASED VHCL)".
5. Touch "IVMS" on the "SELECT SYSTEM" screen. If "BCM" is not indicated, go to Refer to "CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT ".
6. Check the model specification, and touch either "WITH SUNROOF" or "WITHOUT SUNROOF" on the "SELECT SYS COND" screen.
7. Touch "OK". If the selection is wrong, touch "CANCEL".
8. Select the desired part to be diagnosed on the "SELECT TEST ITEM" screen.

COMMUNICATION SYSTEM A

1. BCM INSPECTION Replace BCM with a known-good one, and carry out the communication diagnosis. Refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-182044-S15160531552005080600000) ". OK or NG? OK >> Replace BCM NG >> GO TO 2.
2. LCU INSPECTION Replace with the previously installed BCM. Replace LCU with a known-good one, and carry out the communication diagnosis. Refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-182044-S15160531552005080600000) ". OK or NG? OK >> Replace LCU NG >> Perform the following. Repair or replace communication harness between LCU and BCM. Replace with the previously installed LCU.

COMMUNICATION SYSTEM B

1. HARNESS CONNECTOR INSPECTION Check the terminals (at the control unit and harness) on the malfunctioning LCU for disconnection, bend, loose connection, and other malfunctions. OK or NG? OK >> GO TO 2. NG >> Repair the terminals and connectors.
2. LCU INSPECTION Replace the malfunctioning LCU with a known-good one, and carry out the communication diagnosis. Refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-182044-S15160531552005080600000) ". OK or NG? OK >> Replace LCU NG >> Perform the following. Repair or replace communication harness between LCU and BCM. Replace with the previously installed LCU.

COMMUNICATION SYSTEM C

1. HARNESS CONNECTOR INSPECTION Check the terminals (at the control unit and harness) on BCM and LCU for disconnection, bend, loose connection, and other malfunctions. OK or NG? OK >> GO TO 2. NG >> Repair the terminals and connectors.
2. BCM INSPECTION Replace the malfunctioning BCM with a known-good one, and carry out the communication diagnosis. Refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-182044-S15160531552005080600000) ". OK or NG? OK >> Replace BCM NG >> Perform the following. Repair or replace communication harness between LCU and BCM control. Replace with the previously installed LCU.

1. BCM INSPECTION Replace BCM with a known-good one, and carry out the communication diagnosis. Refer to " «COMMUNICATION DIAGNOSIS»(ref-182044-S12989584632005080600000) ". OK or NG? OK >> Replace BCM NG >> GO TO 2.
2. LCU INSPECTION Replace with the previously installed BCM. Replace LCU with a known-good one, and carry out the communication diagnosis. Refer to " «COMMUNICATION DIAGNOSIS»(ref-182044-S12989584632005080600000) ". OK or NG? OK >> Replace LCU NG >> Perform the following. Repair the communication harness between LCU and BCM. Replace with the previously installed LCU.

1. HARNESS CONNECTOR INSPECTION Check the terminals (at the control unit and harness) on the malfunctioning LCU for disconnection, bend, poor connection and other malfunctions. OK or NG? OK >> GO TO 2 NG >> Repair the terminals and connectors.
2. LCU INSPECTION Replace the malfunctioning LCU with a known-good one, and carry out the communication diagnosis. Refer to " «COMMUNICATION DIAGNOSIS»(ref-182044-S12989584632005080600000) ". OK or NG? OK >> Replace LCU NG >> Perform the following. Repair the communication harness between LCU and BCM. Replace with the previously installed LCU.

1. HARNESS CONNECTOR INSPECTION Check the terminals (at the control unit and harness) on BCM and LCU for disconnection, bend, poor connection, and other malfunctions. OK or NG? OK >> GO TO 2. NG >> Repair the terminals and connectors.
2. BCM INSPECTION Replace the malfunctioning BCM with a known-good one, and carry out the communication diagnosis. Refer to " «COMMUNICATION DIAGNOSIS»(ref-182044-S12989584632005080600000) ". OK or NG? OK >> Replace BCM NG >> Perform the following. Repair the communication harness between LCU and BCM control. Replace with the previously installed BCM.

SWITCH MONITOR

1. Carry out the diagnosis for the switch system input to each control unit.

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1. Detects the status change (switch ON/OFF operation) of the switch to be checked, and turns on/off the indicator lamps (the map lamp and step lamp). Also sounds the buzzer (the key remainder and light remainder) for 0.5 seconds.
2. If a malfunction is detected, no indicator lamp and buzzer react.

Scheme 118

1. The status of the switch (except the ignition switch, interior lamp switch, and map lamp switch) input to each control unit can be monitored.

Cancel of Switch Monitor

If one of the following conditions are satisfied, the switch monitor is cancelled.

1. When the ignition switch is turned OFF.
2. The vehicle speed becomes 7 km/h (4 MPH) or higher.

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1. Check the operations of the auto drive positioner system.

Scheme 120

1. The malfunctioning items are indicated by how many times LEDs on the seat memory switches 1 and 2 flash simultaneously.
2. If the vehicle speed is less than 7 km/h (4 MPH) for 15 seconds after the diagnosis for the seat and steering wheel systems were completed, the vehicle speed signal is judged malfunctioning.
3. If LH door mirror is malfunctioning, only indicator lamp on the memory switch 1 flashes, and if RH door mirror is malfunctioning, only indicator lamp on the memory switch 2 flashes.
4. When all the diagnosis are finished normally, the indicator lamps on the memory switches 1 and 2 go off after the vehicle speed signal diagnosis.
5. If there are multiple malfunctioning parts, the lamps indicate them in sequence from the smallest diagnosis trouble code.
6. The diagnosis results repeat until the diagnosis mode is cancelled.

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1. FUNCTION INSPECTION With CONSULT-II Check the operation on " MIR CHNG SW-R " or " MIR CHNG SW-L " in the DATA MONITOR. Refer to " «DATA MONITOR»(ref-182044-S32775741502005080600000) ". Without CONSULT-II Carry out the switch monitor in the self-diagnostic function. Refer to " «SWITCH MONITOR»(ref-182044-S05118047482005080600000) ". OK or NG? OK >> Door mirror remote control switch (changeover switch) circuit is OK. NG >> GO TO 2.
2. DOOR MIRROR REMOTE CONTROL SWITCH (CHANGEOVER SWITCH) INSPECTION Turn ignition switch OFF. Disconnect door mirror remote control switch connector. Check continuity between door mirror remote control switch terminal 5 (RH), 6 (LH) and 7. Changeover switch RIGHT position 5-7 :Continuity should exist. Changeover switch LEFT position 6-7 :Continuity should exist. OK or NG? OK >> GO TO 3. NG >> Replace the door mirror remote control switch.
3. HARNESS CONTINUITY INSPECTION Disconnect BCM connector. Check continuity between BCM connector M4 terminals 21, 24 and door mirror remote control switch connector M19 terminals 5, 6. 21 (SB) - 5 (SB) :Continuity should exist. 24 (BR/Y) - 6 (BR/Y) :Continuity should exist. Check continuity between BCM connector M4 terminals 21, 24 and ground. 21 (SB) - Ground :Continuity should not exist. 24 (BR/Y) - Ground :Continuity should not exist. OK or NG? OK >> GO TO 4. NG >> Repair or replace harness.
4. GROUND CIRCUIT INSPECTION OF DOOR MIRROR REMOTE CONTROL SWITCH Check continuity between the door mirror remote control switch connector M19 terminal 7 and ground. 7 (B) - Ground :Continuity should exist. OK or NG? OK >> Check harness connection. NG >> Repair or replace harness.

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1. CHECK THE SYMPTOM Check that other systems using the reverse signal are under normal operation. Whether back-up lamp lights is checked. OK or NG? OK >> GO TO 2. NG >> Refer to "VEHICLE DOES NOT CREEP BACKWARD IN "R" POSITION ".
2. CHECK BACK-UP SIGNAL With CONSULT-II Check the operation on "R POSITION SW" in the DATE MONITOR. Refer to " «DATA MONITOR»(ref-182044-S32775741502005080600000) ". Without CONSULT-II Carry out the switch monitor in the self-diagnostic function. Refer to " «SWITCH MONITOR»(ref-182044-S05118047482005080600000) ". OK or NG? OK >> Back-up input signal circuit is OK. NG >> GO TO 3.
3. CHECK HARNESS CONTINUITY Turn ignition switch OFF. Disconnect BCM and back-up lamp relay connector. Check continuity between BCM connector B4 terminal 141 and back-up lamp relay connector E2-2 terminal 3. 141 (R/B) - 3 (R/B) :Continuity should exist. Check continuity between BCM connector B4 terminal 141 and ground. 141 (R/B) - Ground :Continuity should not exist. OK or NG OK >> Replace BCM. NG >> Repair or replace harness.

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1. DOOR MIRROR REMOTE CONTROL SWITCH (MIRROR SWITCH) SIGNAL INSPECTION With CONSULT-II Check the operation on " MIR CON SW-UP/DN " and " MIR CON SW-RH/LH " in the DATA MONITOR. Refer to " «DATA MONITOR»(ref-182044-S32775741502005080600000) ". Without CONSULT-II Carry out the switch monitor in the self-diagnostic function. Refer to " «SWITCH MONITOR»(ref-182044-S05118047482005080600000) ". OK or NG? OK >> Door mirror remote control switch (mirror switch) circuit is OK. NG >> GO TO 2.
2. DOOR MIRROR REMOTE CONTROL SWITCH (MIRROR SWITCH) INSPECTION Turn ignition switch OFF. Disconnect door mirror remote control switch connector. Check continuity between door remote control switch (mirror switch) terminals 1, 2, 3, 4 and 7. OK or NG? OK >> GO TO 3. NG >> Replace the door mirror remote control switch.
3. GROUND CIRCUIT INSPECTION OF DOOR MIRROR REMOTE CONTROL SWITCH Check continuity between the door mirror remote control switch connector M19 terminal 7 and ground. 7 - Ground :Continuity should exist. OK or NG? OK >> GO TO 4. NG >> Repair or replace harness
4. HARNESS CONTINUITY INSPECTION Disconnect BCM harness connector. Check continuity between BCM connector M4 terminals 25, 29, 32, 34 and door mirror remote control switch connector M19 terminals 1,2,3, 4. 25 (G/R) - 2 (G/R) :Continuity should exist. 29 (LG/R) - 1 (LG/R) :Continuity should exist. 32 (L/W) - 3 (L/W) :Continuity should exist. 34 (P/L) - 4 (P/L) :Continuity should exist. Check continuity between BCM connector M4 terminals 25, 29, 32, 34 and ground. 25 (G/R) - Ground :Continuity should not exist. 29 (LG/R) - Ground :Continuity should not exist. 32 (L/W) - Ground :Continuity should not exist. 34 (P/L) - Ground :Continuity should not exist. OK or NG? OK >> Check harness connection. NG >> Repair or replace harness between BCM and door mirror remote control switch.

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1. DOOR MIRROR FUNCTION INSPECTION Check the following items. Operation malfunction caused by a foreign object caught in door mirror face edge. OK or NG? OK >> GO TO 2. NG >> Repair the malfunctioning parts, and check the symptom again.
2. MIRROR MOTOR INSPECTION With CONSULT-II Check the operation with " MIRROR MOTOR RH " or " MIRROR MOTOR LH " in the ACTIVE TEST. Refer to " «ACTIVE TEST»(ref-182044-S01099141122005080600000) ". NOTE: If CONSULT-II is not available, skip this procedure and go to the next step. OK or NG? OK >> Mirror motor circuit. NG >> GO TO 3.
3. HARNESS CONTINUITY INSPECTION Turn ignition switch OFF. Disconnect door mirror control unit D5 (driver side), D35 (passenger side) and door mirror connector D2 (driver side), D32 (passenger side) connectors. Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminals 3, 4, 9 and door mirror connector D2 (driver side), D32 (passenger side) terminals 8, 9, 11. 3 (GY/R) (R) * - 8 (GY/R) (R) * :Continuity should exist. 4 (BR) - 9 (BR) :Continuity should exist. 9 (PU/W) (OR) * -11 (PU/W) (OR) * :Continuity should exist. Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminals 3, 4, 9 and ground. 3 (GY/R) (R) * - Ground :Continuity should not exist. 4 (BR) - Ground :Continuity should not exist. 9 (PU/W) (OR) * - Ground :Continuity should not exist. * :Wire color for passenger side door mirror and passenger side door mirror control unit. OK or NG? OK >> GO TO 4. NG >> Repair or replace harness between door mirror control unit and door mirror.
4. MIRROR MOTOR SIGNAL INSPECTION Connect door mirror control unit D5 (driver side), D35 (passenger side) and door mirror connector D2 (driver side), D32 (passenger side) connectors. Turn ignition switch ON. Check voltage between door mirror control unit connector D5 (driver side), D35 (passenger side) terminals 3, 4, 9 and ground. OK OR NG? Ok >> Replace The Door Mirror Motor (Driver Side) Or (passenger side). NG >> Replace the door mirror control unit (driver side) or (passenger side).

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1. DOOR MIRROR FUNCTION INSPECTION Check the following items. Operation malfunction caused by a foreign object caught in door mirror face edge. Operation malfunction in memory control NOTE: If a door mirror face position is set to an implausible angle, the set position may not be reproduced. OK or NG? OK >> GO TO 2. NG >> Repair the malfunctioning parts, and check the symptom again.
2. MIRROR SENSOR INSPECTION With CONSULT-II Check that "ON" is displayed on " MIR/SE RH R-L ", " MIR/SE RH U-D " or " MIR/SE LH R-L ", " MIR/SE LH U-D " in the DATA MONITOR. Refer to " «DATA MONITOR»(ref-182044-S32775741502005080600000) ". NOTE: It CONSULT-II is not available, skip this procedure and go to the next step. Question OK >> System is OK. NG >> GO TO 3.
3. MIRROR SENSOR POWER SUPPLY INSPECTION Turn ignition switch ON. Check voltage between door mirror control unit connector D5 (driver side), D35 (passenger side) terminal 1 and ground. 1 (W/L) - Ground :Approx. 5V OK or NG OK >> GO TO 4 NG >> Replace door mirror control unit.
4. MIRROR SENSOR GROUND CIRCUIT INSPECTION Turn ignition switch OFF. Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminal 2 and ground. 2 (Y) - Ground :Continuity should exist. OK or NG OK >> GO TO 5 NG >> Replace door mirror control unit.
5. HARNESS CONTINUITY INSPECTION 1 Disconnect door mirror control unit connector D5 (driver side), D35 (passenger side) and door mirror connector D2 (driver side), D32 (passenger side). Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminal 1, 2 and door mirror connector D2 (driver side), D32 (passenger side) terminal 10, 16. 1 (W/L) - 16 (W/L) :Continuity should exist. 2 (Y) - 10 (Y) :Continuity should exist. OK or NG OK >> GO TO 6 NG >> Repair or replace harness.
6. HARNESS CONTINUITY INSPECTION 2 Disconnect door mirror control unit connector D5 (driver side), D35 (passenger side) and door mirror connector D2 (driver side), D32 (passenger side). Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminals 5, 6 and door mirror connector D2 (driver side), D32 (passenger side) terminals 12, 14. 5 (L/Y) - 14 (L/Y) :Continuity should exist. 6 (G) - 12 (G) :Continuity should exist. Check continuity between door mirror control unit connector D5 (driver side), D35 (passenger side) terminals 5, 6 and ground. 5 (L/Y) - Ground :Continuity should not exist. 6 (G) - Ground :Continuity should not exist. OK or NG? OK >> GO TO 7. NG >> Repair or replace harness.
7. MIRROR SENSOR SIGNAL INSPECTION Connect door mirror control unit D5 (driver side), D35 (passenger side) and door mirror D2 (driver side), D32 (passenger side) connectors. Turn ignition switch ON. Check voltage between door mirror control unit connector D5 (driver side), D35 (passenger side) terminals 5, 6 and ground. OK or NG? OK >> Replace the door mirror control unit. NG >> Replace the door mirror.